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pop off valve pilot

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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pop off valve pilot

Unread postAuthor: Quark » Wed Oct 10, 2007 8:50 pm

i've seen multiple guns, some even full auto, piloted by a pop off valve. I don't understand how the the system works (especially how the pop off valve gets reseated) or even really a pop off valve, i haven't experimented with one. If anyone could post the secret, i'd appreciate it
thx
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Unread postAuthor: thespeedycicada » Wed Oct 10, 2007 8:54 pm

a pop up valve is just a normal valve that is rated to a specific pressure it will not open unless this pressure is met/exeeded or when you pull it open manually.Are you wondering how a piston valve works or just the pop up thats used to pilot it?
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current projects: co-axial piston valve.Status DONE!
S.P.E.C.S update mk 1 construction begining in febuary all the maths for it are done plans are drawn up and parts are listed.
NEXT project:auto piston valve.
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Unread postAuthor: BigJon » Wed Oct 10, 2007 9:07 pm

The way that they reseat is by a spring. When enough pressure has been released, the spring simply justs closes it.
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Unread postAuthor: Quark » Wed Oct 10, 2007 9:46 pm

i've build three piston guns, one of which is on the forums
thx for the reply, i think that i get how they work
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